The Logitech cordless desktop set includes a wireless keyboard and wireless laser mouse with USB receiver. It is made with AgION Antimicrobal to protect against the growth of bacteria, mold and mildew. Programmable hotkeys can be easily set up to open favorite apps, sites or files. The mouse runs on two AA batteries and the keyboard runs on four. It is designed for use with Windows based systems and backed by a 90 day warranty from Logitech. Dimensions:19.6" x 3.1" x 9.8"